Motor mounting



Aug. `5, 1930..l E.. Q. @Mass Ei' AL 1,772,334; Moron Moumwcl v Filedngc. '7, 192s *internal Auge, ,1930" EDWIN o. BANGsANnwIIJiIAM ERNsr',orQRAcINT wIscoN'sIN,AssieNoRsroirAM- y Av'rIoN or wIsco'NsIN l,

ILToN BEACHy MANUFACTURING cor/rrANr, or 'RA'QINE, WISCONSIN, A conroRA-Moron MouN'rING' Application iedneeember affieaa; lserial No. 324,435@

This invention relates to improvements in motor mountings, moreparticularly adapted for rigidly attaching electric. motors to sewingmachine heads tohold the motorpullcy in frictional engagementwith thesewing machine hand wheels. Y

This application is a continuation in part of our co-pendingapplication, Serial No. 106,978, filed May 5, 1926. ,i

One of the objects of the invention 1s to provide an exceedingly simpleand inexpensive mounting by which the motor will he held in fixedposition, with its pulley in per"4 manent driving relation t-othesewimg;` inachine hand wheel, but which will permit removal of themotor when desired. u

Another object is to provide a` motor mounting which will occupypractically no space exteriorly of the sewingmachine'heach A by means ofwhich the motor will be positioned closely to the head, and both willrequire a minimum of space. Y

In the drawings:

Figure 1 is a fragmentary end view of sewing machine head withmotorattached by means of our improved mounting.

Figure 2 is a side elevation of the same.

Figure 8 is a fragmentary view similari() Figure 1, Showing a modicatlonof the mf vention. y

In the drawings, thesewing machine head is indicated at 5, and therevoluble hand wheel or fly wheel at- 6.- In that embodiment of theinvention shown in Figures 1 and 2,

the motor 7 has flattened sides. The motor pulley 8 is mounted on therotatable shaft 9 to rotatev therewith, and is in frictional engagementwith the fiy wheel v6 when the motor is mounted on the head 5. 1

' rear flattened face of the motor 7. If desired, the motor casingmayhave afthickened'rear g wall instead of being provided with theattachedplate 10. The plate 10 is providedV apertures 12, the uppermostoneplneach side A fiat plate member 1() is secured to theV wall beingpositioned `just -below` the yelaiged-porticn `13`of theheadj5:Extending 4through the'sefapertures from ,the forward side wall ofthe*head5"`-to thej other, and c slightlybeyond therearward surface ofthe w latter, `are a plurality of headed bolts 14, havingscrew-,threaded ends 15, adapted ptoenter and engage the screw-threadedrecesses 11 lof the motor plate'lOrThe apertures 12 (and vthe boit'slliare so arranged'thatgtheboltswill not;y interfere with the *usualvsewing machine `mechanism in the head'. Forthis purpose,

they vare preferably positioned "as shown'in Figure@ of thedrawing. 7 f

" Between the side wall'ofthe yhead iand thefplate10 of the motor yareypads '16, pref-y erably of felt or other compressible material,

which prevent closecontact ofy the metallic parts and also provide meansforslight adjustmentbetween motor and sewing machinehead'formaintainingv 'the pulley'S in properv frictional engagement withthe fly wheel 6. i i

Referring now to the modifiedfcrmof the invention shownin'Figure 3, 'itwill be seen that the r'notory 17 is round in transverse; verticalsection instead of havingiattened sides.

Thereis attached tothe rear side of said motor 17a specially shapedplate `18. This plate may be attached to the motor in any desired fmanner. f One side of the `plate18 is complemental to the ycurved sideof themotor 17 and the other side ofy the plate 18 issubstantiallyfflat; This-plate is also provided with three'recesses 19,screw-threaded to receive the screw-threaded endslofthe bolts whichhavealso beenindicatedatlt and are similar ,to thebolts 14 shown in Figures1 and r2.- The locations of theapertures in lthesidefwalls of the lheadfdiffer slightly .inthe formfshownin Figure from that shownlinFigures 1land2, because the `plate 18 visnot 'as wi-defrom topto bottomas istheplateflll'` In yFig-ure v3, the padsflyare notpshown,f;butlthey mayalsogbe used between'thef'head 5 andplate 18`forvthe purpose-heretoforeset forthw p i .The motorfmay be easily attached by our mounting and -asreadily removedfor repairs or cleaning, ifdesired.` While attached, itisin proper driving relation to the flywheel.l

v Obviously,changes in details of construction may be made Withoutdeparting from the scope of our invention, and We do not intend to belimited to the precise form shown and described, eXcept as pointed outinthe appended claims. v l

We claim, as our invention: l Y

1. `In a sewing machine, the combination of a lsewing machine head, afly Wheel, a motor, `having ,aandV a pulley'o'n Vthe shaft, l and "meansfor mounting the m'otor'onrthef Y headV with the pulley in frictionalengagement Y' anism.

tending beyond the head in engagement with f said screw-threadedrecesses of the plate member, the location of the bolts being arrangedso that the bolts pass through parts ofthe head not occupied by sewingmech- In testmony,fthat we claim the lforegoing as our invention, Weafiixour signatures, this 3rd day of December, 1928. v

l Y l EDWIN'-Q1BANGjSs y "WILLIAM ERNST;

with the fly Wheel, said means including 'ai plate member on one side ofthe motor having a plurality of screw-threaded recesses,

,and .a plurality of headed bolts, having screw-threaded ends, extendingthrough the vsewing machine head, the screw-threaded having a pluralityof screw-threaded recesses,

`farplklrality `v0f, headed bolts, `having screwthreaded .,ends,.extending ,through-,the :sew-

ing vmachine head, thescrew-threa'ded vends Jextending'beyond the headin engagement withsaid screw-threadedrecesses of the plate member, andpadsof compressiblefmaterial `between :the motorand the -sevvingmachinehead.

Y 3. VIn a sewing machine, the 4combination ofa sewing machine-headhaving -a yplurality of Dppositely positioned aperturesA in its front.fand mean-sidewalls, -a flywheel, .a moftor having a shaft and-a pulleyJon the shaft,

andmeans lfor mounting the motor on the head ,with the pulley ,infrictional engagement `with the ifiywheel, said meansincludinga plate.member ,on one side .of the motor havlng a plurality of; screw-threadedrecesses Ilocated Kto register with I-the apertures in the head, and .aIplurality of 'headedfbolts,having screw-threaded fends, extendingthrough 4the lapertures o-fsaidy sewingmachine head, the screw-.threaded;ends extending beyond the head in engagement with said screw-threadedrecesses yof ,theplate member. l

4.' In -a sewing machine, the combination `of a sewing-machine head, afly` wheel, Va* motor .having a shaft Vand -a pulley on the shaft,,andmeans for mounting the motoron the head witlnthey pulley in`frictional'iengage- 'ment with thel fly ,-Wheel, -said fmeansi includinga plate member onfone side of'the motor having a lpluralityofscreW-threadedfrecesses,

yunda-plu-Izalit-y oflheaded bolts,'havingscrewr-k threaded ends,extending through thesewimg .IIlhine helada the @screw-threaded endsyexlll()

